Source: https://www.seroundtable.com/google-faster-penguin-panda-algorithm-mystery-20395.html
John Mueller announced that Google is working on making a faster Penguin and Panda.
Faster penguin and panda
Possible effects of the faster Penguin and Panda
When Penguin and Panda starts running in real time,
There are several possibilities why your website has not recovered after an algorithmic penalty. Here are some of them:
Types of sites that don’t recover from a penalty
Sites with very little chance of recovery
– Those that used to rank by spam links.
– There is a possibility that actual ranking (which is normally low) is given to the site after the penalty is lifted.
Sites that need more work or have to wait longer to recover
– Those that have been dealt with a manual unnatural links penalty can also be dealing with Penguin.
– Google will have to crawl every link in the disavow file and this process could take several months.
– Google will have to rerun Penguin to determine if the disavow is effective.
– Backlink audits should be done each month whenever your site is hit with the Penguin filter.
– There is a possibility that Penguin will ignore low quality directory links, and there is also a chance that these links can affect the site negatively.
– You might also need to cleanup on-site quality issues as there is also a chance that they are affected by the Panda algorithm.
– Aggressive links disavowing, in some cases, can cause site rankings to fall because the good links were also included in the disavow.
Sites that have fallen victim to a flawed algorithm
– Good quality sites but are still outranked by low-quality scraper sites.
– Even if the unnatural links were cleaned up, the Penguin algorithm can cause Google to distrust a site.